Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Post New Question
All Questions
+0
235031 Questions
0
10
0
+2653
Number Theory
You have a total supply of $1000$ pieces of candy, and an empty vat. You also have a machine that can add exactly $52$ pieces of candy per scoop to the vat, and another machine that can remove exactly $39$ pieces of candy with a different scoop from
read more ..
LiIIiam0216
Aug 5, 2024
0
6
0
+398
Number Theory
When fractions are expressed in different bases, they can be terminating or repeating. For example, when $\frac{1}{5}$ is expressed in base $3,$ the result is
0.\overline{0121}_3 = 0.01210121 \dots,
which is repeating.
When
read more ..
cooIcooIcooI17
Aug 5, 2024
+1
7
1
+24
Let $m$ and $n$ be positive integers. If $m$ has exactly $7$ positive divisors, $n$ has exactly $10$ positive divisors, and $mn$ has exactly
Let $m$ and $n$ be positive integers. If $m$ has exactly $7$ positive divisors, $n$ has exactly $10$ positive divisors, and $mn$ has exactly $22$ positive divisors, then how many divisors does $m^2 n^2$ have?
●
dogsrule
Aug 5, 2024
Aug 4, 2024
0
7
0
+398
Number Theory
Let $a$, $b$, $c$, and $n$ be positive integers. If $a + b + c = 19 \cdot 97$ and
a + 3n = b - 2n = \frac{c}{5n},
compute the value of $a$.
cooIcooIcooI17
Aug 4, 2024
0
7
0
+398
Number Theory
Find the largest positive integer n such that
\frac{(n + 1)^2}{n + 2}
is an integer.
cooIcooIcooI17
Aug 4, 2024
0
9
0
+1234
Number Theory
On planet Enigma, the residents use a currency called the confusion. There are only 2 confusion bills on Enigma, one worth 2 confusions and the other worth 3 confusions. There are also some coins of smaller value, but each weighs over 10
read more ..
Akhain1
Aug 4, 2024
0
5
1
+2653
Number Theory
The product of a set of distinct positive integers is $630$. If one of the numbers is 42, what are the other two numbers?
●
LiIIiam0216
Aug 4, 2024
0
8
0
+1752
Number Theory
How many positive four-digit integers $N$ have the property that the three-digit number obtained by removing the leftmost digit is equal to $\frac{N}{24}?$
ABJeIIy
Aug 4, 2024
0
5
1
+904
Geometry
In right triangle $ABC,$ $\angle C = 90^\circ$. Median $\overline{AM}$ has a length of 1, and median $\overline{BN}$ has a length of 1. What is the length of the hypotenuse of the triangle?
●
Rangcr897
Aug 4, 2024
+2
7
1
+19
Probability
Three fair quarters are tossed, and a tail appears on at least one of them. What is the probability that at least one head appears? Express your answer as a common fraction.
●
DeluluSunshine
Aug 4, 2024
0
6
0
+802
Algebra
Suppose $f(x)$ is a function defined for all real $x$, and suppose $f$ is invertible (that is, $f^{-1}(x)$ exists for all $x$ in the range of $f$). If the graphs of $y=f(x)$ and $y=f(x^3)$ are drawn, at how many points do they intersect?
RedDragonl
Aug 4, 2024
0
8
0
+802
Algebra
Let $A$, $B$, and $C$ be constants so that
\frac{1}{x^3-2x^2-5x+9}=\frac{A}{x+5}+\frac{B}{x-3} + \frac{C}{(x - 3)^2}
holds for all real numbers $x$ other than $-5$ and $3.$ What is $A$?
RedDragonl
Aug 4, 2024
0
5
1
+802
Algebra
The parabola $y = ax^2 + bx + c$ is graphed below. Find $a \cdot b \cdot c.$ (The grid lines are one unit apart.)
read more ..
●
RedDragonl
Aug 4, 2024
0
5
1
+802
Algebra
The equation of the line below can be expressed in the form
\frac{x}{a} + \frac{y}{b} = 1.
Find a.
read more ..
●
RedDragonl
Aug 4, 2024
0
1
1
+904
Geometry
In triangle $PQR,$ $M$ is the midpoint of $\overline{QR}.$ Find $PM.$
PQ = 5, PR = 8, QR = 11
●
Rangcr897
Aug 4, 2024
0
7
1
+559
Algebra
Find the discriminant of the quadratic 5x^2 - 2x + 8 - 2x^2 + 6x + 2.
●
siIviajendeukie
Aug 4, 2024
0
3
1
+559
Algebra
Find the largest integer k such that the equation 5x^2 - kx + 8 - 2x^2 + 25 =0 has no real solutions
●
siIviajendeukie
Aug 4, 2024
0
4
1
+2653
Algebra
The quadratic equation $x^2-mx+24 = 10$ has roots $x_1$ and $x_2$. If $x_1$ and $x_2$ are integers, how many different values of $m$ are possible?
●
LiIIiam0216
Aug 4, 2024
0
8
1
+2653
Algebra
Evaluate the infinite geometric series
0.4 + 0.036 + 0.0000324 + ...
Express your answer as a fraction with integer numerator and denominator.
●
LiIIiam0216
Aug 4, 2024
0
6
1
+2653
Algebra
Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 2 greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator
read more ..
●
LiIIiam0216
Aug 4, 2024
0
7
1
+613
help algebra
The solutions to
2x^2 - 10x + 13 = -6x^2 - 18x - 15
are a+bi and a-bi, where a and b are positive. What is a\cdot b?
●
gnistory
Aug 4, 2024
«
latest
9400
9399
..
9357
9356
9355
9354
9353
..
2
1
»
Post New Question
1 Online Users
Top Users
+118659
Melody
moderator
+37103
ElectricPavlov
+33653
Alan
moderator
+14990
asinus
moderator
+5265
rarinstraw1195
+3146
admin
administrator
+2653
LiIIiam0216
+2489
GingerAle
+1911
tomtom
+1858
NotThatSmart
+1759
bader
Sticky Topics
Some guidelines for question askers.
What is Happening 5
Again a number puzzle. Multiply in writing.
Loads of fun printable number and logic puzzles
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
How to upload a picture.
If a question is ticked that does not mean you cannot continue it.
Should you consider anything before you answer a question?
Geometry Thread
PUZZLES
LaTex Coding
/calculator/bsh9ex1zxj
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material
Information for new people.